Field Controls CAS-7SK Combustion Air System

Field Controls CAS-7SK Combustion Air System delivers reliable, calibrated air supply for gas or oil burners in commercial HVAC installations. This compact, drum-style commercial fan-in-a-drum solution optimizes combustion efficiency and helps minimize fuel waste. Engineered for durability, the CAS-7SK integrates seamlessly into existing ductwork with straightforward installation and maintenance.

Key specifications ensure it covers a wide range of burner sizes, from 840,000 to 1,800,000 BTU, and supports fuel flow of 6–12 GPH. The unit is designed for rugged industrial environments and provides a steady, dependable air supply to improve combustion performance and reduce emissions.

• Drum-style, commercial combustion air fan designed for gas or oil burners
• Broad BTU range: 840,000–1,800,000 BTU for versatile applications
• Fuel flow rating 6–12 GPH supports efficient operation
• Rugged industrial construction for long-term reliability
• Easy installation and maintenance with minimal ductwork modification